The emergency fixture with sensor works under normal supply of AC power, it has 7 adjustable levels of emergency watts(3.6w, 6w, 10w, 12w, 15w, 17w, 20w set up by SET button ). Emergency time can be 90mins, 2 , 3 ,4 , 5 ,6 hours or customized； when it works with microwave sensor, it will 100% light on when movement object gets close ( sensor distance is 3-12 meters（can be set by Jumper）, and sensor angle is 120-160 degree ), and switch to 20% (default value ) twilight when movement object leaves after 5s，30s，90s，3mins（can be set by Jumper）；When AC normal supply shortage, the emergency fixture automatically switch to battery power supply to keep light on. At the same time, microwave sensor still detect object movement, if no movement detected, the lighting will switch to 3.6-20w emergency. This emergency fixture with sensor can also work as led sensor fixture (remove the battery pack) or work as led normal waterproof fixture (remove the battery pack and sensor). It widely used in tunnel, Rail-way station，Metro station, Supermarket, stair well, corridor, evacuation passage, especially parking lots.